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ITSA General Assembly: December 5th - 12th

Author Topic: Tippe Toppe Physics  (Read 3805 times)

Jeremy McCreary

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Re: Tippe Toppe Physics
« Reply #15 on: December 06, 2018, 12:48:08 PM »

I suggest you also look at this thread: Turning a Tippe Top
The video mentioned there of Professor Tadashi Tokieda is worth watching (although I'm not completely convinced by his calculation).

Tadashi's "what we can learn from simple toys" lecture is well worth watching in its entirety, but the tippe top part starts at 31:34...

https://www.youtube.com/watch?v=pkfDYOZ1p4Y

If nothing else, dimensional analysis is great for figuring out what depends on what and what doesn't really matter -- even if the resulting crude formulas are off. He got lucky here, in that there was only one way to arrange the likely input parameters and get the correct units (seconds) for the flipping time. Doesn't always work out that way.
« Last Edit: December 06, 2018, 12:53:50 PM by Jeremy McCreary »
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Playing with the physical world through LEGO

the Earl of Whirl

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Re: Tippe Toppe Physics
« Reply #16 on: December 06, 2018, 06:01:47 PM »

I will watch that video when I get a few minutes.  Right now, here is what I have learned from simple toys.  They are easy to transport.  They encourage conversation and participation.  They always remind me of the wonder of the whirled.  A flip over with a dreidel logo was a big hit at the bar last night and it flipped over very easily.  Good work, Don!!!
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Happiness runs in a circular motion!
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